Though he's still living, Nelson Mandela, the revered former leader of South Africa, makes fewer and fewer public appearances. Now 93, many South Africans are preparing for the day Nelson Mandela will no longer be alive.

Though he's still living, Nelson Mandela, the revered former leader of South Africa, makes fewer and fewer public appearances. Now 93, many South Africans are preparing for the day Nelson Mandela will no longer be alive.